Revealing The SPECIAL TECHNIQUE Of A Pakistani Man To EXTRACT GOLD From Used Motherboard Waste

4,234,335 ครั้ง 13,386 19/05/2026 Tools & Skills
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This video shows the extensive technical process of recycling used electronic waste in a Pakistani factory. Pakistani workers begin by heating the circuit boards in a molten iron using gas welding to weaken the solder, resin, and component adhesives. The material is then sorted, sifted, slowly fired, and then ground using a special machine with cobblestones as the crushing medium. The fine flakes are then heated in a heat-resistant container, washed with water, treated with a special solution...

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